ProjectorDB

Christie LW401 vs Optoma ZK431ST

Christie LW401
Christie LW401
$1,699.99
Optoma ZK431ST
Optoma ZK431ST
Key differences
White light output4,000 lm ANSI—
Native resolutionWXGA (1280 × 800)—
Throw ratio1.5–2.2:10.5:1
Lowest input lag—8.6 msDerived
Light sourceLampLaser (phosphor)
Price$1,699.99—
Room fit
Distance to screen3.2–4.7 m1.1 m
Brightness
Rated brightness4,000 lmDerived—
White light output4,000 lm ANSI—
Claimed brightness (non-standard)—4,100 lm
Brightness uniformity—75%
Display system
Imaging technology3LCDDLP
Chip / panel diagonal0.59 in—
On-screen resolutionWXGA (1280 × 800)Derived4K UHD (3840 × 2160)Derived
Native resolutionWXGA (1280 × 800)—
Native aspect16:10Derived16:9Derived
Addressable resolution—4K UHD (3840 × 2160)
Contrast
Dynamic contrast3,000:12,000,000:1
Dynamic contrast methodDynamic iris—
Colour
Gamma / EOTF presets—2.2, 2.4
Calibration
Picture mode memories4—
3D
3D—Yes
3D formats—Frame packing, Side-by-side, Top-bottom
3D glasses sync—DLP-Link
Light source
Light sourceLampLaser (phosphor)
Lamp power245 W—
Light-source life2,500 h normal · 4,000 h eco30,000 h eco
Optics
Throw ratio1.5–2.2:10.5:1
Image size30–600 in30–300 in
Projection offset—114%
ZoomOpticalNone
Zoom ratio1.47×Derived—
Focal length—7.51 mm
Aperture (f-number)—2.8
FocusMotorisedManual
Vertical lens shift-45–155%—
Horizontal lens shift±105%—
Motorised lens shiftYes—
Lens memory slots3—
Vertical keystone12°15°
Horizontal keystone20°15°
Auto keystoneYes—
Corner correction8-point4-corner
Grid warp—Yes
Interchangeable lensYes—
Motion & gaming
Input lag—1080p: 60 Hz 16.7 ms · 120 Hz 8.6 ms · 4K UHD: 60 Hz 16.7 ms
Lowest input lag—8.6 msDerived
Input lag at 4K 60 Hz—16.7 msDerived
Inputs & control
HDMI inputs2 × HDMI2 × HDMI 2.0
HDMI inputs (count)2Derived2Derived
Newest HDMI version—HDMI 2.0Derived
Other video inputsVGA—
Max input resolution1600 × 12004K UHD
Audio inputs3.5 mm, RCA—
USB media playbackYes—
Control portsRS-232RS-232, + 12 V trigger
Control-system driversCrestron—
Horizontal scan15–106 kHz15–150 kHz
Vertical scan56–120 Hz24–240 Hz
Smart platform
EthernetYesYes
Audio
Speaker power16 W15 W
Speakers21
LayoutStereo—
Audio outputs—3.5 mm
HDMI audio return—NoneDerived
Physical & installation
Dimensions (W × D × H)498 × 476 × 147 mm274 × 216 × 109 mm
Weight8,500 g2,900 g
Orientations+ Table, + Ceiling, + Rear+ 360°
Ceiling mount—M4, screws ≥ 10 mm
Environment & power
Operating temperature0–40°C0–40°C
Operating humidity10–85%RH—
Altitude3,048 m · high-altitude mode3,048 m
Power drawMax 375 WMax 178 W · Eco 125 W
StandbyUp to 0.35 WUp to 0.5 W
Power supply—External adapter
Mains input100–240 V · 50/60 Hz100–240 V · 50/60 Hz
DC input—19.5 V
Noise
Fan noiseNormal 35 dB(A) · Eco 29 dB(A)Normal 35 dB(A) · Eco 29 dB(A)
Safety & compliance
Laser class—Class 1
Risk group—RG2
Hazard distance—1 m
FDA laser notice—Notice 57
Marks+ CE, FCC, + UL, + CCCFCC
Support & ownership
Warranty3 yr (light source 1 yr or 500 h)5 yr
User manualhttps://www.christiedigital.com/globalassets/resources/public/020-000461-02-christie-lit-man-usr-d1.pdf—
In the box
In the boxPower cord, Remote, Remote batteries, + User manual, + HDMI cable, + VGA cable, + Lens capPower cord, Remote, Remote batteries, + Quick start guide
RemoteIR—